It resets itself when I answer calls. It does it few times a week. Apparently, it is a known defect and a major one too. The phone application is very slow. when you answer a call, there is a delay where U am not sure if I need to press the answer button again or what?

Treo doesn't seem to care. Cingular replaced it once and probably again if I press my case. However, no fix is promised or foreseeable. I am shopping for another PDA.